Dish-washing machine.



G. S. BLAKESLEE. DISH WASHING MACHINE.

. APPLICATION FILED APR. I4, I9I3.

Patented Oct. 24, 1916.

5 SHEETS-SHEET I.

G. S. BLAKESLEE.

DISH WASHING MACHINE.

APPLICATION FILED APR. 14. 1913.

\ n 5 SHEETS-SHEET 2.

Patented 0d. 24,1916.

G. S. BLAKESLEE.

DISH WASHING MACHINE.

APPLICATION FILED APR. 14, I9I3.

Patented Oct. 24, 1916.

5 SHEETS-SHEET 3.

G. S. BLA-KESLEE.

DISH WASHING MACHINE.

APPLICATION FILED APR-14,19l3- 1,202,155. Patented Oct. 24,1916.

5 SHEETSSHEET 4.

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GEORGE S. BLAKESLEE, CF CHICAGO, ILLINOIS.

DISH-WASHING MACHINE.

Specification 0! Letters Patent.

Patented ()et. 24, 1916.

Application filed April 14, 1913. Serial No. 760,974.

To all whom it may concern:

Be it known that I, Gnonen S. BLalcnsmin, a citizen of the UnitedStates, residing at Chicago, in the county of Cook, State of Illinois,have invented certain new and useful Improvements in Dish-\VashingMachines, of which the following is a specification, reference being hadto the accompanying drawings.

My invention relates to dish washrn machines of the general type in whicthe dishes to be washed contained in a suitable basket or container aremoved horizontally past one or more paddle wheels which r0- tate over areceptacle containing water and are arranged to take u the water anddeliver it through latera openings upon the dishes.

The object of my present invention is to provide certain improvements indish washing machines of the type mentioned, such improvements relatingmore particularly to the driving mechanism for operating the paddlewheels; to the driving mechanism for operating the conveyer by which thedish-holding baskets are moved through the machine; to the constructionof the tank and the arrangement of the paddle wheels with relationthereto; to devices for supporting the baskets after the dishes havebeen removed from them and while they are being returned to the inletend of the machine, and to the general construction of the machine as-awhole. I accomplish this object as illustrated in the drawings and ashereinafter described.

\Vhat I regard as new is set forth in the claims.

In the accompanying drawings,-Figure l is a side elevation of myimproved machine; Fig. 2 is a horizontal section substantially on line2-2 of Fig. 1; Fig. 3 is a vertical section substantially on line 23-43of F i 2; Fig. 4 is a vertical crosssection on line 4-4 of Fig. 2; Fig.5 is a perspective view of part of the mechanism which sup orts theconveyer chain by which the askets are moved into the machine; Fig. 6 isa vertical cross-section on line 6-6 of Fi 2; and Fig. 7 is an enlargeddetail being a longitudinal vertical section substantial y on line 7-7of Fig. 2.

Generally speaking, my improved dish washing machine comprises anelongated tank open at the top, and of considerable depth, adapted tocontain the washing and rinsing water in separate compartments. Saidtank is provided at the top with longitudinally-extending rails orsupports for the baskets containing the dishes, so that the baskets maybe moved horizontally over the tank from one end to the other, duringthe washing and rinsing operations. At one side of the tank and at aconsiderable distance from the bottom thereof are two paddle-wheelcompartments set a distance apart and open at the sides next to thetank, the bottoms of said paddle-wheel compartments extending a shortdistance below the normal level of the water in the tank, so that as thepaddle wheels are rotated, they take up the water from the upperportions of the tank compartments and deliver it upon the dishes as theypass. A vertical screen extends longitudinally of the tank near the sideat which the paddle-wheel compartments are placed, which screen extendsfrom above the water level down to near the bottom of the tank. In theoperation of washing, the heavier particles washed from the dishessettle to the bottom of the tank, and this screen serves to strain theupper portion of the water passing back to the paddle-wheelcompartments, so that the water taken up by the paddle wheels is keptcleaner and the necessity of changing it often, is avoided. At theoutlet end of the machine there is a tray or table which receives thebaskets after they pass through the machine and said table also extendslongitudinally of the machine at the side opposite the paddle wheelsback to the inlet end of the machine, so that the baskets, after thecleaned dishes have been removed from them, may be moved along on saidlongitudinally-extending table, back to the startmg point.

The dish-holding baskets are moved into the machine by means of anendless belt or chain, driven from the same source of power tliat lrivesthe paddle wheels, by suitable gearing, comprising a friction clutchwhich may yield, in case of necessity, to avoid damaging the baskets.The paddle wheels are mounted on a shaft, which is driven by a suitablemotor connected with said shaft intermediate of its length and betweenthe two paddle wheels, so that the strain is distributed more equally.Suitable steam and water pi es are provided for supplying steam an waterto the tank, and drain and overflow pipes are provided to maintain thevalves water in the tank at the proper level, and for withdrawing it,when desired.

Referring now to the drawings for a more detailed description of theembodiment of my invention therein illustrated, 8 indicates the washingtank, which is in the form of an elongated rectangular box open at thetop and mounted on suitable standards or legs 9, as shown in Fig. 1. Thetank is preferably made of galvanized sheet iron, and is divided by atransverse partition 10, into a washing compartment 11, and a rinsingcompartment 12, as shown in Fig. 3.

13 indicates a drain pipe, havmg branches l i-15 leading to the bottomsof the washing and rinsing compartments, respectively. and connectedwith overflow pi es 16-17 arranged at the end portions 0 the tank, asshown in Fig. 3. Ihe pipes 14-15 are provided with valves 18-19.

20 indicates railsor supports which extend longitudinally of the tank 8,at or near the upper margin thereof, for supportingl the dish-holdingbaskets as they are move along over the washing and rinsingcompartments.

21 indicates a vertical screen arranged near the inner side of the tank8 and extending longitudinally thereof, said screen extending from theupper portion of the washing and rinsin compartments to near the bottomsthereo as shown in Fig. 4. As hereinbefore suggested, said screen servesto strain the washing and rinsing water to remove from the water passinginto the paddle-wheel compartments the solid impurities suspendedtherein.

22 indicates a hot water ipe, havin extensions 23-24, which lead to thewas ing and rinsin compartments, respectively, as shown in *igs. 2 and4. Said extenslons are provided with valves 25-26, respectively, whichare 0 erated by means of handles 25"26, at th suitably connected withsaid valves, as shown in Fig. 8.

27 indicates a steam ipe, having branches 28-29, which lead to t 1epaddle-wheel comartments hereinafter described, for supplying steam tothe water therein, to keep it hot. Said extensions are also rovided with30-31, controlled rom handles 32-33, at the top of the tank and suitablyconnected with said valves, as shown in Fig. 3.

34-85 indicate paddle-wheel com artinents arranged at one side of thewas ing and rinsing compartments, as shown in Fig. 2, said paddle-wheelcompartments being open at their inner sides so asto communicate freelywith the washing and rinsing compartments of the tank. As shown in Fig.6, it will be noted that the bottoms of the paddle-wheel-com artmentsare at a considerable distance above the bottom of e top of the machine,

the tank 8, so that the water passing into the paddle-wheel compartmentsis taken from the upper portions of the tank compartments, where it ispurer, and as such water is strained by the screen or strainer 21, it iscomparatively clean,even that taken from the washing compartment. Thewater taken from the rinsing compartment is, of course, much cleanerthan that taken from the washing'compartment. By this construction it ispracticable to continue the washing operation much longer withoutchanging the wash water, than it would be otherwise.

36-37 indicate paddle-wheels arranged respectively in the paddle-wheelcompartments 34-35. Said paddle-wheels are preferably of theconstruction shown in Fig. 6, each having a plurality of blades 38tangentially disposed with reference to the hub 39 of the paddle-wheel,so that they act to take up the washin and rinsin water and discharge itupon the dishes. Said paddlewheels are mounted u on a common shaft 40,which extends longitudinally of the machine, parallel with the tank 8,passing through the paddle-wheel compartments, as shown in Fig. 2. Saidshaft is driven by means of a gear 41 mounted upon it between the twoaddlewheel compartments, as shown in *ig. 2, which gear meshes with apinion 42, mounted on a counter-shaft 43, which carries a pulley 44,driven by a belt 45, from an electric motor 46, as best shown in Figs.2, 3 and 4. By arranging the drive pulleys and gears intermediately uponthe shaft 40, as shown and described, the strain upon the shaft 40 andits bearings is distributed more equally, and much less power isrequired to drive the paddle-wheels. As best shown in Figs. 2 and 3, oneend of the shaft 40 is extended beyond the adjacent paddle-wheelcompartment, and carries a sleeve 41", having a conical ortion 42", asshown in Fig. 7 said sleeve lieing keyed to the shaft 40, so that itrotates therewith. The conical portion 42" of the sleeve forms onemember of a friction clutch through which the basket-feeding mechanismis operated, as hereinafter described.

43" indicates a spiral inion, which is loosely mounted on the seeve 41",and is provi ed with a hub 44", adapted to fit the conical portion 42,of the sleeve 41', and form the other clutch member, the arrangementbeing such that when said members are closely in contact the pinion 43will be driven by the shaft 40. Said clutch members are normally held inoperative engagement by a spring 45', mounted on the sleeve 41, betweenthe pinion 43' and a collar 46. screwed upon the outer end of the sleeve41", as shown in Fig. 7.

47 indicates a spiral (gear, which meshes with the pinion 43, an drivesthe basketfeeding mechanism. Said gear is mounted upon a transverseshaft 48, suitably mounted in the frame of the machine, as shown inFigs. 2 and 3, said shaft carryin a sprocket wheel 49, which supportsoneend of an endless chain or belt 50, by which the dishholding basketsare moved into the machine. The opposite end of said chain -is mountedon a sprocket wheel 51, which is carried by a shaft 52, as shown inFigs. 2 and 3, said sirocket wheel being arranged so that the main 50extends longitudinally of the inachine, its upper surface beingsubstantially on a level with the rails or supports 20. upon which thebaskets move. The chain 50 is provided with a lug 53, adapted to engagethe baskets and move them along as the chain travels. For the purpose ofadjusting the tension of the chain 50 so as to keep it taut, the shaft52 is carried in bearings which are adjustable toward and from thebearings of the shaft 48, the construction by which this is accomplishedbeing best shown in Fig. 5. As therein shown, 5i indicates a bracket,having diverging arms 55, at one end, which form the bearings for theshaft 48, and 56 indicates a bracket having bosses 57, which form thebearings for the shaft 52. The bracket 56 is supported by standards 58,which rest upon a suitable support, such as a cross-bar 59, preferablyformed of two channel-bars arranged backto-back and secured together,although an other suitable support may be em loye The standards 58 arenot secured to the support 59, but merely rest thereon, so that they maymove slightly longitudinally of the machine. The bracket 56 is providedwith a horizontal slotted fplate 59', which fits against the under surace of the bracket 54, and is adapted to be secured thereto by bolts orscrews. By loosening such bolts the brackets 54-56 may be adjustedlongitudinally of each other to increase or reduce the tension on thechain 50.

60 indicates a bracket for outer end of the shaft 40.

61 indicates a housing or casing which extends over the washing tank andincloses the same. Said casing is provided at the front with slidingdoors (fl-68, through which access may e had to the interior of themachine opposite the paddle-wheel compartments.

64-455 indicate curtains suspended near the inlet and outlet ends of thecasing 61 and arranged transversely thereof to prevent water fromsplashing out at the ends of the machine. \Vhen the baskets are movedinto the machine, the curtains are swiin aside.

66 indicates a table or tray at the outlet end of the machine, on a evelwith the upper surface of the tank 8, for receiving the baskets as theypass out of the machine.

supporting the removed from them, may

not be repeated, but

67 indicates a table or tray which extends longitudinally-of the machineat the side opposite the paddle-wheel compartments from the outlet tothe inlet end thereof, as best shown in Fig. 2, said table beingpractically a-continuation of the table 66; thus the dishholdi'n'gbaskets, after the dishes have been be shoved along upon the table 67,back to the inlet end of the machine.

The operation of the machine has already been quite fully described andtherefore need it may be well to point out the advantage of providingthe friction clutch driving mechanism for the feeding.

chain 50, which is, that 'in case the progress of the baskets throughthe machine should be impeded, the clutch will slip, allowing thebaskets to stop, without the necessity of stopping the shaft 40, therebyavoiding the dan er of breakage.

I 0 not herein claim broadly'a dish 'washing machine having a washingtank and a paddle-wheel compartment communicating therewith above thebottom thereof, as that forms the subject-matter of my endingapplication, Serial No. 677,689, iled February 15, 1912.

That which I claim as my invention, and desire to secure by LettersPatent, is,

1. A dish-washin machine, comprising receptacles for holding washing andrinsin water, compartments disposed laterally with reference to saidreceptacles and opening laterally thercinto above the level 0 the bottomthereof, means in said compartments for throwing water against thedishes, and means for preventing refuse matter washed from the dishesfrom entering said compartments.

2. A dish-washing machine. comprising separate receptacles for holdingwashing and rinsing water arranged end to end, compartments disposedlaterally with reference to said receptacles and communicating therewithabove the bottoms thereof, straining devices between said compartmentsand said washing and rinsing receptacles and means in said compartmentsfor throwing the wash water against the dishes to be washed.

3. A dish-washing machine. comprising a tank divided transversely into aplurality of receptacles, said tank being open at the top, means at theupper portion of said tank for supportin has ets containing the dishesto be washet, compartments disposed laterally with reference to saidtank and communicating therewith above the bottom thereof and below thelevel of the water therein, means in said compartments for throwing thewash water upon the dishes to be washed, and means for straining thewater passing from said receptacles to said compartnients.

4. A dish-washing machine, comprising a tank open at the top, means atthe upper portion of said tank for supporting baskets containing thedishes to be washed, compartments at one side of said tank andcommunicating therewith, paddle-wheels in said compartments, means forrotating said paddlewheels, means at the outlet end of said tank forreceivin the dish-holdin baskets, and a tray exten in ion 'tudinal y ofsaid tank at one side t iereo for supporting the baskets as they aremoved back to the inlet end of the tank.

5. A dish-washing machine, comprising a tank, paddle-wheel compartmentsdisposed lateral y with reference to said tank and communicatingtherewith, said paddlewheel compartments being a distance apart,paddle-wheels in said compartments, a common shaft on which saidaddle-wheels are mounted, a motor mounte above said comcoplu of thispatent may be obtained to:

shaft for rotating the same.

GEORGE S. BLAKESLEE.

Witnesses JOHN L. JACKSON, W. H. DE Even.

in cents each, by addressing the Oommluioner of latent Washington, D.0."

